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The Goodman 10254303 Rubber Coupling is a genuine OEM sealing component for the GCH90703BXAA gas furnace and compatible Goodman/Amana models. This flexible rubber coupling creates a leak-tight, vibration-absorbing connection between condensate drain, vent, or inducer tubing sections. Over time, factory couplings can harden, crack, or split — leading to condensate leaks, pressure-switch faults, or nuisance lockouts. Replacing with the correct OEM coupling restores a proper seal and quiet, reliable operation.
Generic hose or coupling stock may not match the exact inner diameter or durometer, risking slow leaks or blow-off under pressure. The genuine OEM 10254303 is molded to Goodman's spec for a guaranteed fit and long service life.
Easy. A slip-on replacement, usually under 10 minutes with basic hand tools or a screwdriver for any retaining clamps. Power down the furnace, remove the old coupling, seat the new one fully on both fittings, and secure the clamps. A quick and inexpensive fix that prevents costly water damage and safety-switch trips.